According to the latest insights from IDC, worldwide spending on threat intelligence security services (TISS) will increase from $905.5m in 2014 to over $1.4bn in 2018.

IDC said that a "consistent bombardment" of unknown, targeted and adaptive cyber-threats are "wreaking havoc" in the enterprise, driving the expansion of TISS. IDC defined TISS as services that are designed to detect advanced persistent threats (APTs), advanced malware and previously unidentified attacks.

The TISS market is made up of several distinct facets, IDC said, including data feeds and publications, consulting security services and managed security services.